From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1752595AbcEJUVq (ORCPT <rfc822;w@1wt.eu>);
	Tue, 10 May 2016 16:21:46 -0400
Received: from mail-wm0-f66.google.com ([74.125.82.66]:35417 "EHLO
	mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751063AbcEJUVp (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 10 May 2016 16:21:45 -0400
Date: Tue, 10 May 2016 22:21:39 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, Pavan Kondeti <pkondeti@codeaurora.org>,
        Ben Segall <bsegall@google.com>,
        Matt Fleming <matt@codeblueprint.co.uk>,
        Morten Rasmussen <morten.rasmussen@arm.com>,
        Paul Turner <pjt@google.com>, Thomas Gleixner <tglx@linutronix.de>,
        byungchul.park@lge.com, Andrew Hunter <ahh@google.com>,
        Mike Galbraith <mgalbraith@suse.de>
Subject: Re: [PATCH 2/3] sched,fair: Fix local starvation
Message-ID: <20160510202139.GA30230@gmail.com>
References: <20160510174314.355953085@infradead.org>
 <20160510174613.902178264@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20160510174613.902178264@infradead.org>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org


* Peter Zijlstra <peterz@infradead.org> wrote:

> Mike reported that the recent commit 3a47d5124a95 ("sched/fair: Fix
> fairness issue on migration") broke interactivity and the signal
> starve test.

This looks pretty dangerous for v4.6 - how about simply reverting in 3a47d5124a95 
and re-trying in v4.7?

Thanks,

	Ingo